CN220162237U - Automobile engine cylinder body rotating mechanism - Google Patents

Automobile engine cylinder body rotating mechanism Download PDF

Info

Publication number
CN220162237U
CN220162237U CN202321314802.0U CN202321314802U CN220162237U CN 220162237 U CN220162237 U CN 220162237U CN 202321314802 U CN202321314802 U CN 202321314802U CN 220162237 U CN220162237 U CN 220162237U
Authority
CN
China
Prior art keywords
rotary table
automobile engine
engine cylinder
cylinder body
seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202321314802.0U
Other languages
Chinese (zh)
Inventor
汤双华
盛卫群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nantong Yifeng Machinery Parts Manufacturing Co ltd
Original Assignee
Nantong Yifeng Machinery Parts Manufacturing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nantong Yifeng Machinery Parts Manufacturing Co ltd filed Critical Nantong Yifeng Machinery Parts Manufacturing Co ltd
Priority to CN202321314802.0U priority Critical patent/CN220162237U/en
Application granted granted Critical
Publication of CN220162237U publication Critical patent/CN220162237U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Seats For Vehicles (AREA)

Abstract

The utility model discloses an automobile engine cylinder body rotating mechanism, which comprises a base and a clamping driving mechanism; and (2) base: the left side of its upper surface is equipped with the fixing base, the upper end of fixing base is connected with left carousel through the link rotation, the inside sliding connection of dovetail that the upper surface right side of base was seted up has Yan Wei, the upper end of dovetail is connected with the pivot through the bearing rotation, the left end of pivot is equipped with the upper gear, the left side of upper gear is through evenly distributed's connecting rod fixedly connected with right carousel, evenly distributed's cross groove has been seted up to the inside of right carousel, the equal sliding connection in inside of cross groove has the slide, this automobile engine cylinder body rotary mechanism, carry out all-round rotatory spacing to automobile engine cylinder body through elastic extrusion centre gripping, automobile engine cylinder body fixed atress is stable, convenient operation is quick, the device drives automobile engine cylinder body rotation through gear engagement and carries out rotatory locking through the grafting to it, rotatory regulation locking is convenient.

Description

Automobile engine cylinder body rotating mechanism
Technical Field
The utility model relates to the technical field of automobile engines, in particular to an automobile engine cylinder rotating mechanism.
Background
The cylinder body is one of the most important parts in automobile engine and even automobile, the processing quality of automobile engine cylinder body directly influences the quality of engine, and then influence the holistic quality of automobile, therefore the manufacturing processing of engine cylinder body has been received the importance of domestic and foreign automobile manufacturing enterprises all the time, automobile engine cylinder body is in production course of working or later maintenance all need carry out rotatory inspection to it through rotary mechanism, automobile engine cylinder body rotary mechanism is when using, be equipped with independent support on the device base, be connected with the rotary disk through the pivot rotation on the support, the screw hole of evenly distributed has been seted up on the rotary disk, drive automobile engine cylinder body to the screw hole contact position with the rotary disk through external loop wheel machine, then be fixed to the rotary disk with the bolt through the screw hole with automobile engine cylinder body, make the rotary disk drive automobile engine cylinder body rotatory through the epaxial regulation carousel of pivot afterwards, the bolt fixing operation step is loaded down with trivial details, need consume a large amount of time, simultaneously the device carries out rotary support to automobile engine cylinder body through independent support, horizontal both ends atress in the automobile engine cylinder body rotation course for bolt thread fixing position wearing and tearing are great, for this reason, we propose automobile engine cylinder body rotary mechanism.
Disclosure of Invention
The utility model aims to overcome the existing defects and provide the rotating mechanism of the automobile engine cylinder body, the device carries out omnibearing rotation limit on the automobile engine cylinder body through elastic extrusion clamping, the automobile engine cylinder body is stable in fixing stress and convenient and quick to operate, the device drives the automobile engine cylinder body to rotate through gear meshing and carries out rotary locking on the automobile engine cylinder body through plugging, the rotary adjustment and the locking are convenient, and the problems in the background technology can be effectively solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the automobile engine cylinder body rotating mechanism comprises a base and a clamping driving mechanism;
and (2) base: the left side of the upper surface of the base is provided with a fixed seat, the upper end of the fixed seat is rotationally connected with a left rotary table through a connecting shaft, the inside of a dovetail groove formed in the right side of the upper surface of the base is slidingly connected with Yan Wei, the upper end of the dovetail seat is rotationally connected with a rotating shaft through a bearing, the left end of the rotating shaft is provided with an upper gear, the left side of the upper gear is fixedly connected with a right rotary table through uniformly distributed connecting rods, the inside of the right rotary table is provided with uniformly distributed cross grooves, the inside of each cross groove is slidingly connected with a sliding seat, and one side of each sliding seat, which is close to the center of the right rotary table, is fixedly connected with a squeezing sheet through symmetrically distributed telescopic columns;
clamping driving mechanism: the device is arranged on the right side of the right rotary table, the clamping driving mechanism is matched with the sliding seat for installation, the device carries out omnibearing rotation limit on the automobile engine cylinder body through elastic extrusion clamping, the automobile engine cylinder body is stable in fixed stress and convenient and rapid to operate, the device drives the automobile engine cylinder body to rotate through gear meshing and carries out rotary locking on the automobile engine cylinder body through plugging, and rotary adjustment and locking are convenient.
Further, the upper surface middle part of base is equipped with the connecting seat, and the right side of connecting seat is equipped with electric putter, and electric putter's input is connected with external control switch's output electricity, and electric putter's flexible end and the left side fixed connection of dovetail provide power for the device carries out horizontal spacing to the automobile engine cylinder body.
Further, the clamping driving mechanism comprises a mounting seat, a stud, a first bevel gear, a second bevel gear, a rotating shaft and an adjusting wheel, wherein the mounting seat is uniformly arranged on the right side of the right rotary table, the stud is rotationally connected with the middle of the mounting seat through a bearing, one end of the stud, which is far away from the center of the right rotary table, is in threaded connection with an adjacent sliding seat, one end of the stud, which is close to the center of the right rotary table, is provided with the first bevel gear, the middle of the right side of the right rotary table is rotationally connected with the rotating shaft through the bearing, the left end of the rotating shaft is provided with the second bevel gear, the second bevel gear is meshed with the first bevel gear, the right end of the rotating shaft is provided with the adjusting wheel, and the automobile engine cylinder body is vertically and longitudinally clamped and limited.
Further, the lower extreme of right carousel is connected with the regulating spindle through the bearing rotation, and the left end of regulating spindle is equipped with down the gear, and lower gear is connected with last gear engagement, and the right-hand member of regulating spindle is equipped with the regulating turntable, rotates automobile engine cylinder body.
Further, insert posts are inserted into round holes at the upper end of the right rotary plate, evenly distributed jacks are formed in the right side of the upper gear, and the left end of each insert post is inserted into the corresponding jack adjacent to the right end of each insert post transversely to lock rotation of the device.
Further, springs are symmetrically arranged between the sliding seat and the adjacent extrusion sheets, and are movably sleeved with the outer ends of the adjacent telescopic columns to elastically clamp the cylinder body of the automobile engine.
Further, the middle parts of the inner sides of the left rotary table and the right rotary table are respectively provided with a transverse extrusion seat for transversely clamping the cylinder body of the automobile engine.
Compared with the prior art, the utility model has the beneficial effects that: the automobile engine cylinder body rotating mechanism has the following advantages:
1. the electric push rod is started through the external control switch, the telescopic end of the electric push rod drives the dovetail seat to slide leftwards along the dovetail groove horizontally, the two transverse extrusion seats transversely clamp and limit the automobile engine cylinder body, then the adjusting wheel is rotated to drive the rotating shaft to rotate, the rotating shaft drives the bevel gear II to rotate, the bevel gear II is connected in a meshed mode to drive the bevel gear to rotate, the slide seat slides along the cross groove to one end close to the center of the right turntable through the threaded connection, the slide seat drives the extrusion piece to contact with the outer side surface of the automobile engine cylinder body, the adjusting wheel is continuously rotated, at the moment, the telescopic end of the telescopic column and the spring begin to shrink, the compression elasticity of the spring vertically and longitudinally elastically extrude and limit the outer side surface of the automobile engine cylinder body, the automobile engine cylinder body rotating mechanism carries out all-round rotation limit on the automobile engine cylinder body, the automobile engine cylinder body is fixedly stressed stably, the transverse two ends are stressed evenly in the rotating process of the automobile engine cylinder body, and the operation is convenient and rapid.
2. When the automobile engine cylinder body rotates, the inserting columns are horizontally pulled out of the inserting holes, the rotation limit of the upper gear is eliminated, then the adjusting turntable is rotated to enable the adjusting turntable to drive the lower gear to rotate through the adjusting shaft, the lower gear is connected to enable the upper gear to rotate through meshing, the upper gear drives the right turntable to rotate through the connecting rod, the right turntable drives the automobile engine cylinder body to rotate around the axle center of the right turntable through contact static friction force between the right turntable and the extrusion fixing of the extrusion piece, after the automobile engine cylinder body rotates, the inserting columns are horizontally inserted into the inner portions of the transversely adjacent inserting holes leftwards through round holes, locking is fixed after the automobile engine cylinder body rotates, and the automobile engine cylinder body rotating mechanism drives the automobile engine cylinder body to rotate through meshing of the gears and rotates and is locked through insertion.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
In the figure: 1 base, 2 connecting seat, 3 electric putter, 4 dovetail, 5 dovetail, 6 lower gears, 7 rotatory transfer dish, 8 pivots, 9 centre gripping actuating mechanism, 91 mount pad, 92 double-screw bolt, 93 bevel gear one, 94 bevel gear two, 95 pivots, 96 regulating wheel, 10 upper gears, 11 connecting rod, 12 inserted column, 13 jack, 14 slide, 15 extruded piece, 16 flexible post, 17 spring, 18 fixing base, 19 left carousel, 20 right carousel, 21 transversely extrude the seat.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the present embodiment provides a technical solution: the automobile engine cylinder body rotating mechanism comprises a base 1 and a clamping driving mechanism 9;
base 1: the left side of the upper surface of the base is provided with a fixed seat 18, the upper end of the fixed seat 18 is rotationally connected with a left rotary table 19 through a connecting shaft, the inside of a dovetail groove 4 formed on the right side of the upper surface of the base 1 is rotationally connected with a dovetail seat 5, the upper end of the dovetail seat 5 is rotationally connected with a rotating shaft 8 through a bearing, the left end of the rotating shaft 8 is provided with an upper gear 10, the left side of the upper gear 10 is fixedly connected with a right rotary table 20 through uniformly distributed connecting rods 11, the inside of the right rotary table 20 is provided with uniformly distributed cross grooves, the inside of the cross grooves is respectively and slidingly connected with a sliding seat 14, one side of the sliding seat 14 close to the center of the right rotary table 20 is respectively and fixedly connected with a squeezing sheet 15 through symmetrically distributed telescopic columns 16, the lower end of the right rotary table 20 is rotationally connected with an adjusting shaft through a bearing, the left end of the adjusting shaft is provided with a lower gear 6, the lower gear 6 is in meshed connection with the upper gear 10, the right end of the adjusting shaft is provided with an adjusting rotary table 7, the upper round hole of the right rotary table 20 is internally inserted with inserting columns 12, the right side of the upper gear 10 is provided with evenly distributed inserting holes 13, the left end of the inserting columns 12 is inserted with the transversely adjacent inserting holes 13, springs 17 are symmetrically arranged between the sliding seat 14 and the adjacent extrusion piece 15, the springs 17 are movably sleeved with the outer ends of the adjacent telescopic columns 16, the middle parts of the opposite inner sides of the left rotary table 19 and the right rotary table 20 are respectively provided with a transverse extrusion seat 21, when the automobile engine cylinder is rotationally regulated, the base 1 is firstly arranged to a designated position through bolts, the automobile engine cylinder is hoisted to be contacted with the right side surface of the left rotary table 19 through an external small crane and symmetrical, when the automobile engine cylinder is rotated, the inserting columns 12 are horizontally pulled out of the inserting holes 13, thereby the rotation limit of the upper gear 10 is relieved, then the regulating rotary table 7 is rotated, the lower gear 6 is driven to rotate through a regulating shaft, the lower gear 6 is connected with the upper gear 10 in a meshed manner, the upper gear 10 drives the right rotary table 20 to rotate through the connecting rod 11, the right rotary table 20 drives the automobile engine cylinder to rotate around the axle center of the right rotary table 20 through the contact static friction force between the right rotary table 20 and the extrusion fixing of the extrusion piece 15, after the automobile engine cylinder rotates, the inserting column 12 is horizontally inserted into the horizontally adjacent inserting holes 113 to the left through round holes, so that the automobile engine cylinder is locked and fixed after rotating, and the automobile engine cylinder rotating mechanism drives the automobile engine cylinder to rotate through gear meshing and rotationally locks the automobile engine cylinder through insertion, so that the rotation adjustment and the locking are convenient;
clamping driving mechanism 9: the clamping driving mechanism 9 is arranged on the right side of the right rotary table 20, the clamping driving mechanism 9 is matched with the sliding seat 14, the middle part of the upper surface of the base 1 is provided with a connecting seat 2, the right side of the connecting seat 2 is provided with an electric push rod 3, the input end of the electric push rod 3 is electrically connected with the output end of an external control switch, the telescopic end of the electric push rod 3 is fixedly connected with the left side of the dovetail seat 5, the clamping driving mechanism 9 comprises a mounting seat 91, a stud 92, a bevel gear one 93, a bevel gear two 94, a rotary shaft 95 and an adjusting wheel 96, the mounting seat 91 is uniformly arranged on the right side of the right rotary table 20, the middle part of the mounting seat 91 is respectively connected with a stud 92 through bearing rotation, one end of the stud 92 far away from the center of the right rotary table 20 is respectively connected with the adjacent sliding seat 14 through threads, one end of the stud 92 close to the center of the right rotary table 20 is respectively provided with a bevel gear one 93, the middle part of the right rotary table 20 is respectively connected with the rotary shaft 95 through bearing rotation, the left end of the rotating shaft 95 is provided with a bevel gear II 94, the bevel gear II 94 is meshed with the bevel gear I93, the right end of the rotating shaft 95 is provided with an adjusting wheel 96, the electric push rod 3 is started by an external control switch, the telescopic end of the electric push rod 3 drives the dovetail seat 5 to slide leftwards horizontally along the dovetail groove 4 and enables the left side of the right lateral extrusion seat 21 to contact with the right side of the automobile engine cylinder, so as to transversely clamp and limit the automobile engine cylinder, then the adjusting wheel 96 is rotated, the adjusting wheel 96 drives the rotating shaft 95 to rotate, the rotating shaft 95 drives the bevel gear II 94 to rotate, the bevel gear II 94 drives the bevel gear I93 to rotate through meshed connection, the bevel gear I93 drives the stud 92 to rotate, the stud 92 drives the slide seat 14 to slide along the cross groove to one end close to the center of the right turntable 20 through threaded connection, the slide seat 14 drives the extrusion sheet 15 to contact with the outer side of the automobile engine cylinder, and then the adjusting wheel 96 is continuously rotated, at the moment, the telescopic end of the telescopic column 16 and the spring 17 start to shrink, the outer side face of the automobile engine cylinder body is elastically extruded and limited by the compression elastic force of the spring 17, and the automobile engine cylinder body rotating mechanism carries out omnibearing rotation limiting on the automobile engine cylinder body by elastically extruding and clamping, so that the automobile engine cylinder body is stable in fixed stress and convenient and rapid to operate.
The working principle of the automobile engine cylinder body rotating mechanism provided by the utility model is as follows: when the device is used for rotating and adjusting the automobile engine cylinder body, firstly, the base 1 is mounted to a designated position through a bolt, the automobile engine cylinder body is hoisted to be in contact with the right side surface of the left rotary table 19 at the left side through an external small crane and symmetrical, then, the electric push rod 3 is started through an external control switch, the telescopic end of the electric push rod 3 drives the dovetail seat 5 to horizontally slide leftwards along the dovetail groove 4 and enables the left side of the right lateral extrusion seat 21 to be in contact with the right side of the automobile engine cylinder body, so as to transversely clamp and limit the automobile engine cylinder body, then, the adjusting wheel 96 is rotated, the adjusting wheel 96 drives the rotary shaft 95 to rotate, the rotary shaft 95 drives the bevel gear II 94 to rotate, the bevel gear II 94 drives the bevel gear I93 to rotate through meshing connection, the bevel gear I93 drives the stud 92 to rotate, the stud 92 drives the slide seat 14 to slide along the cross groove towards one end close to the center of the right rotary table 20, the slide seat 14 drives the extrusion sheet 15 to contact the outer side surface of the automobile engine cylinder, then continues to rotate the adjusting wheel 96, at the moment, the telescopic end of the telescopic column 16 and the spring 17 start to shrink, the outer side surface of the automobile engine cylinder is elastically extruded and limited by the compression elasticity of the spring 17, when the automobile engine cylinder rotates, the inserting column 12 is horizontally pulled out of the inserting hole 13 to release the rotation limit of the upper gear 10, then the adjusting turntable 7 is rotated, the adjusting turntable 7 drives the lower gear 6 to rotate through the adjusting shaft, the lower gear 6 drives the upper gear 10 to rotate through meshed connection, the upper gear 10 drives the right turntable 20 to rotate through the connecting rod 11, the right turntable 20 drives the automobile engine cylinder to rotate around the axle center of the right turntable 20 through the contact static friction force between the right turntable 20 and the extrusion fixing of the extrusion sheet 15, after the rotation of the automobile engine cylinder body is completed, the inserted column 12 is horizontally inserted into the transversely adjacent insertion holes 113 leftwards through the round holes, so that the automobile engine cylinder body is locked and fixed after being rotated.
It should be noted that the electric push rod 3 disclosed in the above embodiment may employ the DTZ630, and the external control switch is provided with a control button corresponding to the electric push rod 3 for controlling the switch thereof.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (7)

1. Automobile engine cylinder body rotary mechanism, its characterized in that: comprises a base (1) and a clamping driving mechanism (9);
base (1): the left side of the upper surface of the base is provided with a fixed seat (18), the upper end of the fixed seat (18) is rotationally connected with a left rotary table (19) through a connecting shaft, the inside of a dovetail groove (4) formed in the right side of the upper surface of the base (1) is slidingly connected with a dovetail seat (5), the upper end of the dovetail seat (5) is rotationally connected with a rotary shaft (8) through a bearing, the left end of the rotary shaft (8) is provided with an upper gear (10), the left side of the upper gear (10) is fixedly connected with a right rotary table (20) through uniformly distributed connecting rods (11), uniformly distributed cross grooves are formed in the inside of the right rotary table (20), sliding seats (14) are uniformly and slidingly connected with extrusion plates (15) through symmetrically distributed telescopic columns (16) on one side, close to the center of the right rotary table (20);
clamping driving mechanism (9): the clamping driving mechanism is arranged on the right side of the right rotary table (20), and the clamping driving mechanism (9) is matched with the sliding seat (14).
2. The automotive engine block rotation mechanism of claim 1, wherein: the upper surface middle part of base (1) is equipped with connecting seat (2), and the right side of connecting seat (2) is equipped with electric putter (3), and the input and the output electricity of external control switch of electric putter (3) are connected, and the flexible end and the left side fixed connection of forked tail seat (5) of electric putter (3).
3. The automotive engine block rotation mechanism of claim 1, wherein: the clamping driving mechanism (9) comprises a mounting seat (91), a stud (92), a first bevel gear (93), a second bevel gear (94), a rotating shaft (95) and an adjusting wheel (96), wherein the mounting seat (91) is uniformly arranged on the right side of the right rotary table (20), the stud (92) is connected with the middle of the mounting seat (91) through bearing rotation, one end, far away from the center of the right rotary table (20), of the stud (92) is in threaded connection with an adjacent sliding seat (14), one end, close to the center of the right rotary table (20), of the stud (92) is provided with the first bevel gear (93), the middle of the right side of the right rotary table (20) is connected with the rotating shaft (95) through bearing rotation, the left end of the rotating shaft (95) is provided with the second bevel gear (94), the second bevel gear (94) is connected with the first bevel gear (93) in a meshed mode, and the right end of the rotating shaft (95) is provided with the adjusting wheel (96).
4. The automotive engine block rotation mechanism of claim 1, wherein: the lower extreme of right carousel (20) is connected with the regulating spindle through the bearing rotation, and the left end of regulating spindle is equipped with lower gear (6), and lower gear (6) and last gear (10) meshing are connected, and the right-hand member of regulating spindle is equipped with regulation carousel (7).
5. The automotive engine block rotation mechanism of claim 1, wherein: the right rotary table (20) is internally inserted with inserting columns (12), the right side of the upper gear (10) is provided with evenly distributed inserting holes (13), and the left end of each inserting column (12) is inserted with the horizontally adjacent inserting holes (13).
6. The automotive engine block rotation mechanism of claim 1, wherein: springs (17) are symmetrically arranged between the sliding seat (14) and the adjacent extrusion piece (15), and the springs (17) are movably sleeved with the outer ends of the adjacent telescopic columns (16).
7. The automotive engine block rotation mechanism of claim 1, wherein: the middle parts of the inner sides of the left rotary table (19) and the right rotary table (20) are respectively provided with a transverse extrusion seat (21).
CN202321314802.0U 2023-05-29 2023-05-29 Automobile engine cylinder body rotating mechanism Active CN220162237U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321314802.0U CN220162237U (en) 2023-05-29 2023-05-29 Automobile engine cylinder body rotating mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321314802.0U CN220162237U (en) 2023-05-29 2023-05-29 Automobile engine cylinder body rotating mechanism

Publications (1)

Publication Number Publication Date
CN220162237U true CN220162237U (en) 2023-12-12

Family

ID=89051979

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321314802.0U Active CN220162237U (en) 2023-05-29 2023-05-29 Automobile engine cylinder body rotating mechanism

Country Status (1)

Country Link
CN (1) CN220162237U (en)

Similar Documents

Publication Publication Date Title
CN110370038B (en) Aluminum plate machining device stable in clamping and capable of rotating
CN111421352A (en) Clamp for clamping irregular parts
CN220162237U (en) Automobile engine cylinder body rotating mechanism
CN216349946U (en) Cable tension testing device
CN217749026U (en) Sheet metal part positioning mechanism for automobile sheet metal
CN111496678A (en) Part machining fixing device
CN216250979U (en) New energy automobile battery fixing device
CN214923855U (en) Gearbox assembly stop device
CN212578366U (en) Part machining fixing device
CN114415021A (en) Motor test tool with stabilizing function
CN112720304A (en) Clamping device for tensile strength test of new material
CN210254036U (en) Clamping device of spring core cutter
CN209166816U (en) A kind of impulse bearing seat load test device
CN212858589U (en) Clamp for machining key groove of main shaft
CN214771648U (en) Clamping jaw for grabbing automobile part hexagon bolt
CN219929134U (en) Coiling mechanism that surface fabric production was used
CN219053655U (en) Clamp structure
CN214923631U (en) Clamping device for frame repair
CN220120539U (en) Intensity test fixture for electronic universal testing machine
CN220881995U (en) Multi-angle test fixture
CN215035605U (en) Gear shifting shaft milling groove clamping device
CN215093444U (en) But quick adjustment's anchor clamps for auto parts
CN217572823U (en) Cell board clamping device is used in production of LED display screen
CN215757477U (en) Quenching clamp for shafts
CN214439650U (en) Cement mill supporting mechanism for cement production

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant